You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.

 
 

MAX640CSA+

Buck (Step Down) Switching Regulator, Fixed, 4V-11.5Vin, 3.3V/225mA out, NSOIC-8

MAX640CSA+ - Buck (Step Down) Switching Regulator, Fixed, 4V-11.5Vin, 3.3V/225mA out, NSOIC-8

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
MAX640CSA+
Order Code:
2514070
Technical Datasheet:
MAX640CSA+   Datasheet
See all Technical Docs

Product Overview

The MAX640CSA+ is a high efficiency, low IQ, step down DC to DC converter in 8 pin NSOIC package. This step down switching regulator provides high efficiency over a wide range of load currents and delivers up to 225mA output current. A current limiting pulse frequency modulated (PFM) control scheme gives the devices the benefits of pulse width modulated (PWM) converters (high efficiency at heavy loads) while using only 10µA of supply current (2mA to 10mA for PWM converters). This results in high efficiency over wide range of loads. The MAX640 provides lower preset output voltage of 3.3V and the output can be user adjusted to any voltage from 1.3V to input voltage. It has an internal 1A power MOSFET switch which makes the device ideal for minimum component, low and medium power applications. It is typical used for 9V battery to 5V, 3.3V or 3V conversion, high efficiency linear regulator replacement and 5V to 3.3V converters.
  • Supply voltage range from 4V to 11.5V
  • Operating temperature range from 0°C to 70°C
  • Low supply current, high efficiency over wide load range
  • Quiescent current of 10µA
  • Low battery detection comparator
  • Efficiency of 91% (IOUT = 25mA, L = 470µH) and 87% (IOUT = 100mA, L = 100µH)
  • Switch on-time of 71.4µs (V+ = 4V, VOUT = 3.3V) and 8.8µs (V+ = 9V, VOUT = 3.3V)
  • Switch off-time of 15.6µs (V+ = 4V, VOUT = 3.3V) and 15.6µs (V+ = 9V, VOUT = 3.3V)

Applications

Power Management, Portable Devices

Product Information

Want to see similar products? Simply select your required attributes below and hit the button ×


:
Buck (Step Down)

:
4V

:
11.5V

:
NSOIC

:
8Pins

:
225mA

:
3.3V

:
-

:
70°C

:
-

:
-

:
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Technical Docs (1)

45 In stock Need more?

45 available for 4 - 6 business days delivery

Rs.405.14

Pricing is unavailable. Please contact customer services.

Price for:
Each
Multiple: 1 Minimum: 1
Quantity Price Your Price
 
 
1+ Rs.405.14
Promotional price
Contract Price
Web only price
Web only contract price
 
10+ Rs.365.51
Promotional price
Contract Price
Web only price
Web only contract price
 
25+ Rs.348.63
Promotional price
Contract Price
Web only price
Web only contract price
 
 
 

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Back Order Pre-Order
Add
Restricted Item
Enter Your Part No/Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange